. 2020 Jun 19;50(7):543–554. doi: 10.4070/kcj.2020.0205

Table 1. The incidence and the prognosis of cardiac injury in COVID-19 from the previous reports using different definitions.

Study	Total patients	Incidence	Definition of cardiac injury	Mortality
Huang et al.¹⁹⁾	41	5 (12.0%)	Cardiac biomarker (hsTroponin-I)	15.0%
Huang et al.¹⁹⁾	41	5 (12.0%)	ECG, Echo	15.0%
Wang et al.⁷⁾	138	10 (7.2%)	Cardiac biomarker (Troponin-I)	4.3%
Wang et al.⁷⁾	138	10 (7.2%)	ECG, Echo	4.3%
Yang et al.²⁰⁾	52	12 (23.0%)	Cardiac biomarker (hsTroponin-I>28 pg/mL)	61.5% (75.0%^*)
Zhou et al.¹⁸⁾	191	33 (17.0%)	Cardiac biomarker (Troponin-I)	28.3% (97.0%^*)
Zhou et al.¹⁸⁾	191	33 (17.0%)	ECG, Echo	28.3% (97.0%^*)
Guo et al.⁸⁾	187	52 (27.8%)	Cardiac biomarker (Troponin-T)	23.0% (59.6%^*)

COVID-19 = coronavirus disease 2019; ECG = electrocardiogram.

^*Mortality of patients with any cardiac injury.